Physicochemical Properties and Health Risks of Informal E-Waste Processing at Alaba International Market in Lagos, Nigeria

Adedoyin Olubunmi Bankole, Akinyemi Olufemi Ogunkeyede, Judith Ngoli Odionye, Benjamin Giwa, Oliver Chinonso Mbaoma, Bamidele Honesty Akpeji, Ekaette Akpan Fadairo, Efe Jeffery Isukuru
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Abstract

This study investigated the groundwater quality and health risks associated with informal e-waste processing in the Alaba International Market in Lagos, Nigeria. Twenty-two groundwater samples were collected from hand-dug wells in the market area and analyzed for physicochemical properties and heavy metal concentrations. The results showed that the groundwater quality was poor, with high levels of heavy metals, including cadmium, lead, and chromium. The health index (HI) for children and adults was above the tolerable threshold levels, indicating a potential health risk to the population. Principal component analysis and hierarchical cluster analysis were used to identify the sources of metals in groundwater, and the results showed that informal e-waste processing was a significant source of contamination. The study highlights the need for effective management strategies to mitigate the potential health risks associated with informal e-waste processing and ensure public health and environmental safety.
尼日利亚拉各斯阿拉巴国际市场非正规电子废物处理的理化性质和健康风险
本研究调查了尼日利亚拉各斯阿拉巴国际市场与非正式电子废物处理有关的地下水质量和健康风险。从市场区域的手挖井中采集了22个地下水样本,分析了其理化性质和重金属浓度。结果表明,该地区地下水水质较差,镉、铅、铬等重金属含量较高。儿童和成人的健康指数(HI)高于可容忍阈值水平,表明对人口存在潜在的健康风险。采用主成分分析和层次聚类分析对地下水中金属的来源进行了识别,结果表明,非正式的电子垃圾处理是地下水中金属的重要污染源。该研究强调需要制定有效的管理战略,以减轻与非正式电子废物处理有关的潜在健康风险,并确保公共健康和环境安全。
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